PT1483363E - Antibacterial cleaning wipe - Google Patents

Description

DESCRIPTION

FIELD OF THE INVENTION Field of the Invention The present invention relates to a nonwoven fabric impregnated with a liquid cleaning composition providing a lasting antibacterial protection to rigid surfaces.

BACKGROUND OF THE INVENTION The patent literature describes numerous wipes for both body cleaning and rigid surface cleaning, but no patent discloses the present cleaning wipes which confer a lasting antibacterial protection to rigid surfaces and a minimization of risks and waste.

U.S. Patent Nos. 5,756,612; 5,763,332; 5,908,707; 5,914,177; 5,980,922 and 6,168,852 disclose cleaning compositions which are inverse emulsions.

U.S. Patent Nos. 6,183,315 and 6,183,763 disclose cleaning compositions containing a proton donating agent and having an acidic pH.

U.S. Patent Nos. 5,863,663; 5,952,043; 6,063,746 and 6,121,165 disclose cleaning compositions which are oil-in-water emulsions.

SUMMARY OF THE INVENTION

A cleaning wipe for cleaning and imparting a lasting antibacterial protection to rigid surfaces such as walls, sinks, tubs, door handles, tables, countertops and decks comprises a nonwoven fabric containing at least polyester fibers and viscose, wherein the nonwoven fabric is impregnated with a liquid cleansing composition containing an anionic surfactant and a polycationic antibacterial agent, a nonionic surfactant and an emulsifier, optionally a perfume, optionally a proton donating agent, optionally, -tensioactives, solvents and water, and wherein the liquid cleaning composition is not an emulsion and does not contain proteins, metal salts, enzymes, amides, sodium hypochlorite, dimethicone, N-methyl-2-pyrrolidone, a monoalkylphosphate or a sulfosuccinate based on silicon.

The present invention relates to an antibacterial cleaning cloth for rigid surfaces as defined in claim 1.

As used herein and in the appended claims, the term " perfume " is used in its ordinary sense to designate and include any substance or mixture of non-water soluble fragrance substances, including natural (i.e. obtained by extraction from a flower, herb, bud, or plant), odoriferous (i.e. , mixture of natural oils or constituents of natural oils) and synthetically produced. Typically, perfumes are complex mixtures of combinations of various organic compounds, such as alcohols, aldehydes, ethers and aromatic compounds, and varying amounts of essential oils (e.g., terpenes) - for example, 0 to 80%, generally 10% to 70% by weight - the essential oils themselves being volatile odoriferous compounds which also serve to dissolve the other components of the perfume.

In the present invention, the precise composition of the perfume has no particular consequence on cleaning performance, as long as it meets the criteria of water immiscibility and possession of a pleasant odor. Naturally, of course, in particular in cleaning compositions for domestic use, the perfume, as well as all other ingredients, must be cosmetically acceptable, ie non-toxic, hypoallergenic, etc.

Suitable essential oils are selected from the group consisting of natural anethole, anise oil " star china ", anise oil " globe brand ", Balm (Peru), basil oil (India), oil of pepper of the kingdom, 40/20 oil pepper resin, bois de rose (Brazil) FOB, borneol vanes (China), camphor oil, technical synthetic camphor powder, cananga oil, cardamom oil, cedarwood oil (China) BP, cinnamon bark oil, cinnamon leaf oil, citronella oil, clove bud oil, clove leaf oil (China) , coriander (Russia), coumarin 69 ° C (China), cyclamic aldehyde, diphenyl oxide, ethyl vanillin, eucalyptol, eucalyptus oil, Eucalyptus citriodora, fennel oil, geranium oil, ginger oil, ginger oil resin (India), white grapefruit oil, holy stick oil, Gurjun balm, heliotropin, isobornyl acetate, isolon Glycolene, Juniper Berry Oil, L-methyl Acetate, Lavender Oil, Lemon Oil, "Lemongrass" Oil, Distilled Lime Oil, Litsea Cubeba Oil, Longifolene, Menthol Crystals, Methylcrylketone, Methyl Cholicol, Salicylate methyl ketone, musk ketone, ketone musk, xylene musk, nut oil, orange oil, patchouli oil, peppermint oil, phenylethyl alcohol, pepper oil, pepper oil, rosalin, sandalwood oil, sandenol, safflower oil, sassafras oil, mint oil, indigo nardi, tagetes, tea plant oil, vanillin, vetiver oil (Java), wintergreen, alcitim, Arbanex ™, Arbanol®, oils of bergamot, camphene, alpha-campholenic aldehyde, I-carvone, cineole, citral, citronellol, terpenes, alpha-citronellol, citronellyl acetate, citronelitonitrile, para-cymene, dihydroanetol, dihydrocarveol, d-dihydrocarvone , dihydrolinalool, dihydromyrene, dihydromyrce diol hydrochloride, dimethyloctanal, dimethyloctanol, dimethyloctanyl acetate, estragol, ethyl 2-methylbutyrate, fenchol, Femlol ™, Florilys ™, geraniol, geranyl acetate, geranyl nitrile, Glidmint ™, oils Glenox ™, grapefruit oils, trans-2-hexenal, trans-2-hexenol, cis-3-hexenyl isovalerate, cis-3-hexanyl 2-methylbutyrate, hexyl isovalerate, hexyl 2-methylbutyrate, hydroxycytronelal, ionone, isobornylmethyl ether, linalool, linalool oxide, linalyl acetate, menthane hydroperoxide, methyl acetate, hexylmethyl ether, methyl 2-methylbutyrate, 2-methylbutyl isovalerate, myrcene, nerol, neryl acetate, 3- octanol, 3-octyl acetate, phenylethyl 2-methylbutyrate, petit grain oil, cis-pinane, pinane hydroperoxide, pinanol, pine ester, pine needle oils, tetrahydromyrcenol, Tetralol®, oils tomato, Vitalizair, Zestoral ™, HINOKITIOL ™ and THUJOPSIS DOLABRATA ™.

The water soluble nonionic surfactants used in this invention are commercially well known and include the aliphatic primary alcohol ethoxylates, the aliphatic secondary alcohol ethoxylates, the alkyl phenol ethoxylates, the ethylene oxide / 4-propylene oxide condensates with primary alkanols, such as Plurafacs (BASF), and condensates of ethylene oxide with esters of fatty acids and sorbitan, such as Tweens (ICI). Synthetic nonionic organic detergents are generally the condensation products of an organic, aliphatic, alkylaromatic, hydrophobic compound with hydrophilic ethylene oxide groups. Virtually all hydrophobic compounds having a carboxyl, hydroxyl, amido or amino group with a free hydrogen bonded to the nitrogen can be condensed with ethylene oxide or its polyhydrating product, polyethylene glycol, to form a water-soluble nonionic detergent . In addition, the length of the polyethenoxy chain can be adjusted to achieve the desired balance between the hydrophobic and the hydrophilic elements. The class of nonionic surfactants includes the condensation products of a higher alcohol (e.g., an alkanol containing 8 to 18 carbon atoms in a straight or branched chain configuration) with 5 to 30 moles of ethylene oxide; for example, lauryl or myristyl alcohol condensed with 16 moles of ethylene oxide (EO), tridecanol condensed with 6 moles of EO, myristyl alcohol condensed with 10 moles of EO per mole of myristyl alcohol; the condensation product of OE with a coconut fatty alcohol moiety containing a mixture of fatty alcohols with alkyl chains whose length ranges from 10 to 14 carbon atoms, wherein the condensate contains 6 moles of OE per mole of total alcohol or 9 moles of OE per mole of alcohol; and tallow alcohol ethoxylates containing 6 EO at 11 EO per mole of alcohol.

A preferred group of the above nonionic surfactants consists of the Neodol ethoxylates (Shell Co.), which are higher aliphatic primary alcohols containing 9-15 carbon atoms, such as the C--C alcan alkanols condensed with 2.5 to 10 moles of oxide of ethylene (NEODOL 91-2.5 OR -5 or -6 or -8), the C 12-13 alkanols condensed with 6.5 moles of ethylene oxide (Neodol 23-6.5), the C 12 -C 15 alkanols condensed with 12 moles of ethylene oxide (Neodol 25-12), the C 1 -C 15 alkanols condensed with 13 moles of ethylene oxide (Neodol 45-13) and the like.

Further satisfactory water-soluble ethylene oxide and alcohol condensates are the condensation products of an aliphatic secondary alcohol containing 8 to 18 carbon atoms in a straight or branched chain configuration with 5 to 30 moles of ethylene oxide. Examples of commercially available, above-mentioned nonionic detergents are the C11-C15 secondary alkanols condensed with 9 OE (Tergitol 15-S-9) or 12 OE (Tergitol 15-S-12) available from Union Carbide.

Other suitable nonionic surfactants include the poly (ethylene oxide) condensates of one mole of alkylphenol comprising 8 to 18 carbon atoms in a straight or branched chain alkyl group with 5 to 30 moles of ethylene oxide. Specific examples of ethoxylates of alkylphenols include nonylphenol condensed with 9.5 moles of EO per mole of nonylphenol, di-nonylphenol condensed with 12 moles of EO per mole of phenol, and di-nonylphenol condensed with 15 moles of EO per mole of phenol and di-isooctylphenol condensed with 15 moles of EO per mole of phenol. Nonionic surfactants of this type which are commercially available include Igepal CO-630 (nonylphenol ethoxylate) available from GAF Corporation. 6

Suitable nonionic surfactants are also the water soluble products of the condensation of a C 3 -C 20 alkanol with an ethereal mixture of ethylene oxide and propylene oxide, wherein the weight ratio of ethylene oxide to propylene oxide is in the range of 2.5: 1 to 4: 1, preferably in the range of 2.8: 1 to 3.3: 1, the total amount of ethylene oxide and propylene oxide (including the ethanol or 60-85% by weight, preferably 70-80% by weight. These detergents are available commercially from BASF-Wyandotte, and a particularly preferred detergent is a condensate of a C10-C16 alkanol with ethylene oxide and propylene oxide, the weight ratio of ethylene oxide to propylene oxide being 3 : 1 and the total alkoxy content of about 75% by weight.

Condensates of 2 to 30 moles of ethylene oxide with C10-C20 and sorbitan mono-and triesters of C10-C20 alkanoic acids having a BLH of 8 to 15 may also be used as a non-ionic detergent in the described composition. These surfactants are well known and available from Imperial Chemical Industries under the trade designation Tween. Suitable surfactants include polyoxyethylene (4) sorbitan monolaurate, polyoxyethylene (4) sorbitan monostearate, polyoxyethylene (20) sorbitan trioleate and polyoxyethylene (20) sorbitan tristearate.

Other suitable water soluble nonionic surfactants are marketed under the trade designation " Pluronics ". The compounds are formed by condensation of ethylene oxide with a hydrophobic base formed by the condensation of propylene oxide with propylene glycol. The molecular weight of the hydrophobic moiety of the molecule is in the range of 950 to 4,000, preferably 200 to 2,500. The addition of polyoxyethylene radicals to the hydrophobic moiety tends to increase the solubility of the molecule as a whole so as to render the surfactant soluble in water. The molecular weight of the block polymers varies from 1,000 to 15,000, and the poly (ethylene oxide) content may range from 20% to 80% by weight. Preferably, these surfactants will be in the liquid form, and suitable surfactants are available as the categories L62 and L64.

Suitable anionic surfactants which are soluble in water and different from soaps, which are used in the present compositions, include those detergent or surface active compounds comprising a hydrophobic organic group generally containing 8 to 26 carbon atoms, preferably 10 to 18 carbon atoms, in its molecular structure and at least one water solubilizable group selected from the sulfonate, sulfate and carboxylate groups, to form a water-soluble detergent. Typically, the hydrophobic group will include or comprise an C 8 -C 22 acyl or alkyl group. These surfactants are used in the form of water-soluble salts, and the cation forming the salt is usually selected from the group consisting of sodium, potassium , ammonium, zinc, magnesium and mono-, di- or tri (C 2 -C 3) alkanolammonium, the sodium, magnesium and ammonium cations being again preferred.

Examples of suitable sulfonated anionic surfactants are the well known (higher alkyl) (mononuclear aromatic) sulfonates, such as the higher alkylbenzenesulfonates containing from 10 to 16 carbon atoms in the higher alkyl group, in a straight or branched chain, the alkyltoluene sulfonates in C -Cis and Cb-Cys alkylphenol sulfonates. The linear alkylbenzenesulfonate has a high content of 3-phenyl (or higher) isomers and a correspondingly low (well below 50%) 2-phenyl (or lower) isomers, i.e. wherein the benzene ring is preferably bonded, (eg 4, 5, 6 or 7) of the alkyl group, and the content of the isomers in which the benzene ring is attached at the 2 or 1-position is correspondingly low. Particularly preferred materials are reported in U.S. Patent 3,320,174.

Other suitable anionic surfactants are olefin sulfonates, including long chain alkenesulfonates, long chain hydroxyalkane sulfonates or mixtures of alkenesulfonates and hydroxyalkanesulfonates. These olefin sulfonate type detergents may be prepared in a known manner by reaction of sulfur trioxide (SO 3) with long chain olefins containing 8 to 25, preferably 12 to 21 carbon atoms and having the formula RCH = CHR 1 in that R is a higher alkyl group having 6 to 23 carbon atoms and R 1 is an alkyl group having 1 to 17 carbon atoms or hydrogen to form a mixture of sultones and alkenesulfonic acids which is then treated to convert the sultones to sulfonates. Preferred olefin sulfonates contain 14 to 16 carbon atoms in the alkyl group R 1 and are obtained by sulfonating an α-olefin.

Other examples of suitable anionic sulfonate surfactants are paraffin sulfonates containing 10 to 20, preferably 13 to 17, carbon atoms. The primary paraffin sulfonates 9 are prepared by reacting long chain α-olefins with bisulfites. The paraffin sulfonates having the sulfonate groups distributed along the paraffin chain are described in U.S. Patent Nos. 2,503,280; 2,507,088; 3,260,744; 3,372,188 and in German Patent 735,096.

Examples of satisfactory anionic surfactants of the sulfate type are the C8 -C8 alkyl sulfate salts and the C8 -C18 polyethenoxy alkyl ether sulfate salts having the formula R (OC2 H4) nOSC> 3 M, wherein n is 1 to 12, preferably 1 to 5, and M is a solubilizable cation selected from the group consisting of sodium, potassium, ammonium, zinc, magnesium and mono-, di- and triethanolammonium ions. The alkyl sulfates may be obtained by sulfating the alcohols obtained by reducing the coconut oil or tallow glycerides, or mixtures thereof, and neutralizing the resulting product.

On the other hand, the polyethenoxy alkyl ether sulfates are obtained by sulfating the condensation product of ethylene oxide with a C 8 -C 18 alkanol and neutralizing the resulting product. The alkyl sulfates may be obtained by sulfating the alcohols obtained by reducing the coconut oil or tallow glycerides, or mixtures thereof, and neutralizing the resulting product. On the other hand, the polyethenoxy alkyl ether sulfates are obtained by sulfating the condensation product of ethylene oxide with a C8 -C18 alkanol and neutralizing the resulting product. The sulfates of polyethenoxy alkyl ether differ from one another in terms of the number of moles of ethylene oxide reacted with one mole of alkanol. Preferred alkyl sulfates 10 and preferred polyethenoxy alkyl ethers sulfates contain 10 to 16 carbon atoms in the alkyl group.

C8 -C12 polyethyleneethoxy alkylphenyl ether sulphates containing 2 to 6 moles of ethylene oxide in the molecule are also suitable for use in the compositions of the invention. These surfactants may be prepared by reacting an alkylphenol with 2 to 6 moles of ethylene oxide followed by sulfation and neutralization of the resulting ethoxylated alkylphenol.

Other suitable anionic detergents are the C 9 -C 15 polyethenoxy alkyl ethers carboxylates having the structural formula R (OC 2 H 4) n OX COOH, wherein n is a number from 4 to 12, preferably 5 to 10, and X is selected from group consisting of CH2, C (O) R1 and

where R 1 is a C 1 -C 3 alkylene group. Preferred compounds include C 9 -C 15 alkyl polyethenoxy ethers (7-9) C (O) CH 2 CH 2 CCOH, C 13 -C 15 alkyl polyethenoxy ethers (7-9)

and C 1 -C 12 alkyl polyethenoxy (5-7) CH 2 COOH ethers. These compounds may be prepared by condensation of ethylene oxide with an appropriate alkanol and reaction of this reaction product with chloroacetic acid to prepare the carboxylic ether acids as shown in U.S. Patent No. 3,741,911 or with succinic anhydride or anhydride phthalic acid.

Obviously, these anionic detergents will be present in the acid form or in salt form, depending on the pH of the final composition, the cation being involved in the formation of the salt the same as for the other anionic detergents.

An emulsifier used in the present composition is the LRI emulsifier produced by Wackherr, which is a blend of a hydrogenated castor oil PEG-40 and buteth 26 PPG-26. Other useful emulsifiers are all surfactants which may be used to solubilize perfumes or other lipophilic ingredients in water, such as surfactants belonging to the following families and having an HBV of greater than 12: ethoxylated fatty alcohols, ethoxylated lanolin, glycerides ethoxylated carboxylic acids (polyethylene glycol acylates and diacylates), OE-OP block copolymers or any propoxylated POE ethers, as well as sorbitan esters and sorbitol esters. More specifically, the following examples may be mentioned: - ethoxylated castor oil or hydrogenated castor oil and ethoxylated, such as Arlatone 289, 650 and 827 from Imperial Chemical Industries; all mixtures containing ethoxylated castor oil or ethoxylated hydrogenated castor oil such as Arlatone 975 and Arlatone 980 from Imperial Chemical Industries or also the Dragoco 2/014160 emulsifier, which is a mixture of fatty alcohol polyglycol ether and oil ethoxylate hydrogenated castor oil; all ethoxylated alkyl alcohols, such as the Erij surfactant range of Imperial Chemical Industries or also Arlasolve 200, which is an ethoxylated isohexadecyl alcohol; all mono- and triesters of alkanoic acids and polyethylene glycol sorbitan from Imperial Chemical Industries, specifically Tween 20 which is polyoxyethylene (20) sorbitan monolaurate.

The cosurfactants in these compositions are selected from the group consisting of polypropylene glycol of the formula HO (CH3 CHCH2 O) nH, wherein n is a number selected from 1 to 18; (X) n OH, Rx (X) n OH, R (X) nOR and Rx (X) n OR 1, wherein R is a C 1 -C 6 alkyl group, R 1 is a C 2 -C 4 acyl group, X is (OCH 2 CH 2) or (OCH 2 (CH 3) CH) en is a number from 1 to 4; diethyleneglycol, triethyleneglycol, an alkyl lactate in which the alkyl group has 1 to 6 carbon atoms, 1-methoxy-2-propanol, 1-methoxy-3-propanol and 1-methoxy-2-, 3- or 4-butanol .

Representative members of the polypropylene glycol include dipropylene glycol and polypropylene glycol having a molecular weight of from 150 to 1000, for example polypropylene glycol 400. Suitable glycol ethers include ethylene glycol monobutyl ether (butyl celosolve), diethyleneglycol monobutyl ether (butyl carbitol ), triethylene glycol monobutyl ether, mono-, di-, tripropylene glycol monobutyl ether, tetraethylene glycol monobutyl ether, mono-, di-, tripropylene glycol monomethyl ether, propylene glycol monomethyl ether, ethylene glycol monohexyl ether, Diethyleneglycol monohexyl ether, propylene glycol tert-butyl ether, ethylene glycol monoethyl ether, ethylene glycol monomethyl ether, ethylene glycol monopropyl ether, ethylene glycol monopentyl ether, diethyleneglycol monomethyl ether, diethyleneglycol monoethyl ether , the monopropyl ether diethylene glycol monopentyl ether, triethylene glycol monomethyl ether, triethylene glycol monoethyl ether, triethylene glycol monopropyl ether, triethylene glycol monopentyl ether, triethylene glycol monohexyl ether, mono-, di-, di-, tripropylene glycol monopropyl ether, mono-, di-, tripropylene glycol monopropyl ether, mono-, di-, tripropylene glycol monopentyl ether, mono-, di-, tripropylene glycol monomethyl ether, mono-, di-, tributylene glycol monomethyl ether, Mono-, di- tributylene glycol monoethyl ether, mono-, di- tributylene glycol monopropyl ether, mono-, di- tributylene glycol monoputyl ether, mono-, di- tributylene glycol monopentylether, ether mono-, di-, tributylene glycol monohexyl, monoethylene glycol monoacetate and dipropylene glycol propionate.

Preferred C 1 -C 4 alkanols are ethanol, isopropanol and mixtures thereof. The ultimate essential ingredient in compositions of the invention having improved interfacial tension properties is water. The proportion of water in the compositions is generally in the range of 20% to 99.7%, preferably between 70% and 97% by weight.

In addition to the essential ingredients described above, the compositions of this invention may often contain, and preferably contain, one or more additional ingredients which serve to enhance the overall performance of the product. The antibacterial solution of this invention may, if desired, also contain other components, either to provide an additional effect or to make the product more attractive to the consumer. The following components are mentioned by way of example: pigments or dyes in amounts up to 0.5% by weight; 2,6-di-tert-butyl-p-cresol, etc., in amounts up to 2% by weight; and pH adjusting agents, such as sulfuric acid, hydrochloric acid or sodium hydroxide, as required. The proton donating agent that may be used in this composition is selected from the group consisting of organic acids, inorganic acids and mixtures thereof. The organic acids are selected from the group consisting of aliphatic mono- and dicarboxylic acids, organic acids containing hydroxyl groups and mixtures thereof. Typical organic acids are adipic acid, succinic acid, lactic acid, glycolic acid, salicylic acid, tartaric acid, citric acid, gluconic acid, malic acid, acetic acid, pyruvic acid, sorbic acid, propionic acid, formic acid and ortho-hydroxybenzoic acid. Typical inorganic acids are sulfuric acid, nitric acid and hydrochloric acid,

The cleaning compositions are prepared by simple batch mixing at 25 ° -30 ° C. The nonwoven fabric is impregnated with the liquid cleaning composition by a positive impregnation process. The liquid is positively fed to the non-woven fabric through a controlled gear pump and an injection bar, at a ratio of 2.4 to 15 grams of liquid cleaning composition to about 1 gram of non-woven fabric. fabric. The nonwoven fabric is preferably comprised of 10% to 90% by weight of viscose fibers and 10% to 90% by weight of polyester fibers, such as the Spunlace fabric produced by Dexter Corporation. More preferably, the nonwoven fabric comprises 10% to 95% by weight of wood pulp fibers, 1% to 40% by weight of viscose fibers and 1% to 40% by weight of polyester fibers. A nonwoven fabric of this type, which is produced by Dexter Corporation under the designation Hydraspun, comprises 60% to 95% wood pulp fibers, 2.5% to 20% by weight of viscose fibers and 2.5% to 20% by weight of polyester fibers.

The following examples illustrate liquid cleaning compositions of the disclosed invention. Exemplified compositions are illustrative only and do not limit the scope of the invention. Unless otherwise specified, the proportions in the examples and the remaining locations of the specification are by weight.

Example 1

The cleaning wipes were prepared according to the process referred to above. 16 ABCD Part I% by weight% by weight% by weight 1 by weight Dipropylene glycol n-butyl ether 1.5 Ethanol 3 Sodium laurilsulfate 0.14 0.21 0.21 0.09 Poly (nexamethylene-4 -biguanide) 0.08 0.09 0.09 0.09 Perfume 0.05 0.05 0.05 0.05 Lactic acid 0.75 0.75 0.75 Propylene glycol monobutyl ether 3 3 1.5 LRI solubilising 0.1 0.1 0.1 0.1 Water Equil for 100 Equil for 100 Equil for 100 Equil for 100 pH (adjusted with NaOH) 3,5 3,5 3,5 3,5 Part II Part I 70, 8 70.6 70.6 70.8 Spunlace 29.4 29.4 29.4 29.4

Formulas A, B, C and D were tested for residue pattern on black Perspex tiles and were rated on a 10-point scale (0 = very weak / very residue and 10 = very good / absence of residue). A B C D Classification in terms of waste 4.1 2.7 2.7 6.1

Perspex black tiles of 15 cm x 15 cm are cleaned in a circular motion with the test substrate impregnated, so that the center of the tile is wet and the contours are kept dry.

Each test product is applied to 5 different tiles (= 5 replicates) and then 5 judges classify the residual pattern (observation made under indirect light conditions) of each tile between 0 = very weak / wastes and 10 = excellent / absence of residues, on a 10-point scale. The results are then analyzed statistically.

The liquid compositions (Part I) described in A and B were tested for their antibacterial efficacy in suspension according to the EN1276 protocol using 10 g / l sucrose as the interfering substance.

Logging reduction of " colony forming units " Liquid composition Liquid composition A B Pseudomonas aeruginosa > 5.4 > 5.4 Staphylococcus aureus > 5.1 > 5.1 The liquid composition (Part I) described in B has been tested for the long-term protection of rigid surfaces against germs.

The ceramic tiles are treated with the product, allowed to dry and rinsed with sterile tap water. After drying, the surface is inoculated with a suspension of germs containing bovine serum albumin at a concentration of 3 g / l as the interfering substance. After 1 hour of contact, the remaining 18 live gems are quantified. Three successive inoculations are performed at 1-hour intervals. Product performance is expressed in terms of reduction log of " UFC " versus an untreated tile.

Logging reduction of " colony forming units " 1st inoculation 2nd inoculation 3rd inoculation Pseudomonas aeruginosa 3,1 2,3 2,4 Staphylococcus aureus 2,3 3,5 * 3 * 3 f

Lisbon, February 26, 2007

Claims (12)

Cleaning wipe comprising approximately: (a) 20% to 30% by weight of a nonwoven fabric containing at least polyester fibers and viscose fibers; and (b) 70% to 80% by weight of a liquid cleaning composition which is impregnated in said nonwoven fabric, wherein said liquid cleaning composition comprises by weight: (i) 0.01% to 10% by weight of an anionic surfactant of the sulfonate or sulfate type; (ii) 0.01% to 2.0% of a cationic polymer selected from the group consisting of poly (hexamethylene biguanide) hydrochloride of the structure: fl HC! Wherein n is 4 to 6, or from the group consisting of a quaternized cationic polymer having the structure (a) and (b) and (c) (CH2) 3-NH-C-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3 wherein A ( ii) being the perfect balance with water, the cleaning liquid composition is not an emulsion and does not contain proteins, metal salts, enzymes, amides, sodium hypochlorite, dimethicone, N-methyl-2-pyrrolidone, a monoalkylphosphate, a sulfosuccinate based silicon, potassium sorbate, an alkali metal carbonate, salicylamide substituted compositions, silver ions, an anionic surfactant as a crosslinking agent, poly (hexamethylene biguanide) stearate or a cationic surfactant such as a quaternary ammonium compound. Cleaning wipe according to claim 1, further including up to 10% by weight of at least one water-soluble cosurfactant. Cleaning wipe according to claim 2, further including up to 1.0% by weight of an emulsifier or an ethoxylated nonionic surfactant. The cleaning wipe of claim 3, further including a fragrance or an essential oil. A cleaning wipe according to claim 4, further including up to 6% by weight of a C1 -C4 alkanol. A cleaning wipe according to claim 5, further including up to 5% by weight of a proton donating agent. A cleaning wipe according to claim 6, wherein said C4 -C4 alkanol is ethanol or isopropanol. 2 The cleaning wipe according to claim 2, wherein said cosurfactant is a mixture of glycol ethers in which one of said glycol ethers is propylene glycol N-butyl ether. A cleaning wipe according to claim 8, wherein said other glycol ether is dipropylene glycol N-butyl ether. A cleaning wipe according to claim 9, wherein said anionic surfactant is a sulfate type surfactant. A cleaning wipe according to claim 10, wherein said cationic polymer is poly (hexamethylene-4-biguanide) hydrochloride. A cleaning wipe according to any one of claims 1 to 11, wherein the nonwoven fabric consists of 60% to 95% by weight of wood pulp fibers, 2.5% to 20% by weight of wood fibers viscose and 2.5% to 20% by weight of polyester fibers. Lisbon, February 26, 2007